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<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
<script src="jquery/1.10.2/jquery.min.js">
	
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<script>
	$(document).ready(function() {
		$("button").click(function() {
			$("#div1").load("ajax/demo_test.txt");
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<body>

	<div id="div1">
		<h2>使用 jQuery AJAX 修改文本内容</h2>
	</div>
	<button>获取外部内容</button>

</body>
</html>